I love mine.
Although I've never heard the M3ti, I've read some great reviews on them here and elsewhere.
I have M60s, VP100, QS8s with a HSU VTF3 MKII, and couldnt be happier.
If you can find someone in your area to audition them for you, it would be well worth your time.
Check the "auditioning in your area" thread in the "questions comments" area of Axioms forum, and you might be able to find someone near you with the M3tis.
I've been thinking of getting a pair for my bedroom.
Good luck in your search.